MOF-Derived Hollow Cage NixCo3−xO4and Their Synergy with Graphene for Outstanding Supercapacitors
作者： Anjali Jayakumar , Rajini P. Antony , Ronghua Wang , Jong-Min Lee
关键词: Graphene oxide paper 、 Mixed oxide 、 Chemical engineering 、 Supercapacitor 、 Graphene 、 Capacitance 、 Materials science 、 Cobalt 、 Cobalt oxide 、 Nanotechnology 、 Electrode
摘要: Highly optimized nickel cobalt mixed oxide has been derived from zeolite imidazole frameworks. While the pure gives only 178.7 F g-1 as specific capacitance at a current density of 1 A , Ni:Co 1:1 given an extremely high and unprecedented 1931 with retention 69.5% after 5000 cycles in three electrode test. This is further used to make composite oxide/graphene 3D hydrogel for enhancing electrochemical performance by virtue continuous porous graphene conductive network. The made GNi:Co successfully achieves even higher 2870.8 also shows significant improvement cyclic stability 81% cycles. An asymmetric supercapacitor assembled using negative positive electrode. With potential window 1.5 V binder free electrodes, capacitor energy 50.2 Wh kg-1 power 750 W .
sci-hub.se 参考文章(54)
A. Nirmalesh Naveen, Subramanian Selladurai, Novel low temperature synthesis and electrochemical characterization of mesoporous nickel cobaltite-reduced graphene oxide (RGO) composite for supercapacitor application Electrochimica Acta. ,vol. 173, pp. 290- 301 ,(2015) , 10.1016/J.ELECTACTA.2015.05.072
V G Hadjiev, M N Iliev, I V Vergilov, The Raman spectra of Co3O4 Journal of Physics C: Solid State Physics. ,vol. 21, ,(1988) , 10.1088/0022-3719/21/7/007
Rahul R. Salunkhe, Jing Tang, Yuichiro Kamachi, Teruyuki Nakato, Jung Ho Kim, Yusuke Yamauchi, Asymmetric Supercapacitors Using 3D Nanoporous Carbon and Cobalt Oxide Electrodes Synthesized from a Single Metal-Organic Framework. ACS Nano. ,vol. 9, pp. 6288- 6296 ,(2015) , 10.1021/ACSNANO.5B01790
Anjali Jayakumar, Yong-Jin Yoon, Ronghua Wang, Jong-Min Lee, Novel graphene/polyaniline/MnOx 3D-hydrogels obtained by controlled morphology of MnOx in the graphene/polyaniline matrix for high performance binder-free supercapacitor electrodes RSC Advances. ,vol. 5, pp. 94388- 94396 ,(2015) , 10.1039/C5RA16884H
Feng-Xiang Qin, Shao-Yi Jia, Fei-Fei Wang, Song-Hai Wu, Jia Song, Yong Liu, Hemin@metal–organic framework with peroxidase-like activity and its application to glucose detection Catalysis Science & Technology. ,vol. 3, pp. 2761- 2768 ,(2013) , 10.1039/C3CY00268C
Hui Zhang, Hang Qiao, Haiyan Wang, Nan Zhou, Jiajie Chen, Yougen Tang, Jingsha Li, Chenghuan Huang, Nickel cobalt oxide/carbon nanotubes hybrid as a high-performance electrocatalyst for metal/air battery Nanoscale. ,vol. 6, pp. 10235- 10242 ,(2014) , 10.1039/C4NR02125H
Dong Un Lee, Bae Jung Kim, Zhongwei Chen, One-pot synthesis of a mesoporous NiCo2O4 nanoplatelet and graphene hybrid and its oxygen reduction and evolution activities as an efficient bi-functional electrocatalyst Journal of Materials Chemistry A. ,vol. 1, pp. 4754- 4762 ,(2013) , 10.1039/C3TA01402A
Yanwu Zhu, Shanthi Murali, Weiwei Cai, Xuesong Li, Ji Won Suk, Jeffrey R Potts, Rodney S Ruoff, None, Graphene and Graphene Oxide: Synthesis, Properties, and Applications Advanced Materials. ,vol. 22, pp. 3906- 3924 ,(2010) , 10.1002/ADMA.201001068
Jin Ge, Hong-Bin Yao, Wei Hu, Xiao-Fang Yu, You-Xian Yan, Li-Bo Mao, Hui-Hui Li, Shan-Shan Li, Shu-Hong Yu, Facile dip coating processed graphene/MnO2 nanostructured sponges as high performance supercapacitor electrodes Nano Energy. ,vol. 2, pp. 505- 513 ,(2013) , 10.1016/J.NANOEN.2012.12.002
A Chu, Comparison of commercial supercapacitors and high-power lithium-ion batteries for power-assist applications in hybrid electric vehicles: I. Initial characterization Journal of Power Sources. ,vol. 112, pp. 236- 246 ,(2002) , 10.1016/S0378-7753(02)00364-6